<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>消息对话框</title>
    <script src="event.js"></script>
</head>
<body>

<button onclick="onClick_MessageBox()">简单的消息对话框</button>
<button onclick="onClick_MessageBoxIcon()">Icon消息对话框</button>
<button onclick="onClick_MessageBoxType()">Type消息对话框</button>
<button onclick="onClick_MessageBoxMultiButtons()">消息对话框多个按钮</button>
<p>
    <label id="label"></label>
</body>
</html>
